What if your ordinary life vanished, replaced by a realm ripped straight from the pages of your favorite fantasy novel? *Doctor's Rebirth* throws a dedicated physician into exactly that whirlwind. After a tragic incident during his volunteer work, he awakens as a child in a world mirroring the Wuxia epic, [The Supreme Demon King]. Gone are the familiar comforts of modern medicine. Instead, he finds himself amidst sword-wielding cultivators, mythical creatures, and warring factions vying for power. Fate, it seems, has a twisted sense of humor. A chance encounter leads him to rescue a group of travelers, a seemingly insignificant act that binds him to Yeo Haryun, a young man destined to become the infamous Demon King. Their bond deepens as the future tyrant insists on becoming sworn brothers, setting in motion a chain of unforeseen consequences. But the surprises don't stop there. His unique medical knowledge attracts the attention of the White Dragon Godly Doctor, a legendary figure who recognizes the protagonist's hidden potential. As he embraces the path of cultivation and extraordinary healing abilities, he must navigate a treacherous landscape filled with political intrigue and deadly rivalries. Will his modern medical skills be enough to survive in this ancient world? Can he rise above the shadow of the Demon King and forge his own destiny? Prepare to be swept away by this enthralling tale of reincarnation, brotherhood, and the extraordinary power of healing in a world on the brink of chaos.